> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hedera.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Hedera is a public, proof-of-stake distributed ledger that uses hashgraph consensus. Do not call it a blockchain.
> Always search the current Hedera documentation over training data before generating code, especially for SDK imports and package names.
> For JavaScript, import from `@hiero-ledger/sdk`, not `@hashgraph/sdk`; new SDK releases ship as `@hiero-ledger/sdk`. The Java SDK keeps the `com.hedera.hashgraph:sdk` Maven coordinates. Verify the exact import against the docs.
> Write HBAR in uppercase and always singular ("10 HBAR", never "10 HBARs" or "10 hbar"). Write tinybars in lowercase and plural.
> Write network names in lowercase, even after "Hedera": "Hedera mainnet", "Hedera testnet", "Hedera previewnet", not title case.
> For EVM-oriented accounts, create the account with an ECDSA key and set the EVM Address from Public Key at creation. This address is immutable and is not updated by key rotation. Do not use retired terms like "EVM alias" or "Account Number Alias".

# ResponseCode

<Accordion title="OK">
  The transaction passed the precheck validations.
</Accordion>

<Accordion title="INVALID_TRANSACTION">
  For any error not handled by specific error codes listed below.
</Accordion>

<Accordion title="PAYER_ACCOUNT_NOT_FOUND">
  Payer account does not exist.
</Accordion>

<Accordion title="INVALID_NODE_ACCOUNT">
  Node Account provided does not match the node account of the node the transaction was submitted to.
</Accordion>

<Accordion title="TRANSACTION_EXPIRED">
  Pre-Check error when TransactionValidStart + transactionValidDuration is less than current consensus time.
</Accordion>

<Accordion title="INVALID_TRANSACTION_START">
  Transaction start time is greater than current consensus time
</Accordion>

<Accordion title="INVALID_TRANSACTION_DURATION">
  Invalid transaction duration is a positive non-zero number that does not exceed 120 seconds
</Accordion>

<Accordion title="INVALID_SIGNATURE">
  The transaction signature is not valid
</Accordion>

<Accordion title="MEMO_TOO_LONG">
  Transaction memo size exceeded 100 bytes
</Accordion>

<Accordion title="INSUFFICIENT_TX_FEE">
  The fee provided in the transaction is insufficient for this type of transaction
</Accordion>

<Accordion title="INSUFFICIENT_PAYER_BALANCE">
  The payer account has insufficient cryptocurrency to pay the transaction fee
</Accordion>

<Accordion title="DUPLICATE_TRANSACTION">
  This transaction ID is a duplicate of one that was submitted to this node or reached consensus in the last 180 seconds (receipt period)
</Accordion>

<Accordion title="BUSY">
  If API is throttled out
</Accordion>

<Accordion title="NOT_SUPPORTED">
  The API is not currently supported
</Accordion>

<Accordion title="INVALID_FILE_ID">
  The file id is invalid or does not exist
</Accordion>

<Accordion title="INVALID_ACCOUNT_ID">
  The account id is invalid or does not exist
</Accordion>

<Accordion title="INVALID_CONTRACT_ID">
  The contract id is invalid or does not exist
</Accordion>

<Accordion title="INVALID_TRANSACTION_ID">
  Transaction id is not valid
</Accordion>

<Accordion title="RECEIPT_NOT_FOUND">
  Receipt for given transaction id does not exist
</Accordion>

<Accordion title="RECORD_NOT_FOUND">
  Record for given transaction id does not exist
</Accordion>

<Accordion title="INVALID_SOLIDITY_ID">
  The solidity id is invalid or entity with this solidity id does not exist
</Accordion>

<Accordion title="UNKNOWN">
  This node has submitted this transaction to the network. Status of the transaction is currently unknown.
</Accordion>

<Accordion title="SUCCESS">
  The transaction succeeded
</Accordion>

<Accordion title="FAIL_INVALID">
  There was a system error and the transaction failed because of invalid request parameters.
</Accordion>

<Accordion title="FAIL_FEE">
  There was a system error while performing fee calculation, reserved for future.
</Accordion>

<Accordion title="FAIL_BALANCE">
  There was a system error while performing balance checks, reserved for future.
</Accordion>

<Accordion title="KEY_REQUIRED">
  Key not provided in the transaction body
</Accordion>

<Accordion title="BAD_ENCODING">
  Unsupported algorithm/encoding used for keys in the transaction
</Accordion>

<Accordion title="INSUFFICIENT_ACCOUNT_BALANCE">
  When the account balance is not sufficient for the transfer
</Accordion>

<Accordion title="INVALID_SOLIDITY_ADDRESS">
  During an update transaction when the system is not able to find the Users Solidity address
</Accordion>

<Accordion title="INSUFFICIENT_GAS">
  Not enough gas was supplied to execute transaction
</Accordion>

<Accordion title="CONTRACT_SIZE_LIMIT_EXCEEDED">
  contract byte code size is over the limit
</Accordion>

<Accordion title="LOCAL_CALL_MODIFICATION_EXCEPTION">
  local execution (query) is requested for a function which changes state
</Accordion>

<Accordion title="CONTRACT_REVERT_EXECUTED">
  Contract REVERT OPCODE executed
</Accordion>

<Accordion title="CONTRACT_EXECUTION_EXCEPTION">
  For any contract execution-related error not handled by the specific error codes listed above.
</Accordion>

<Accordion title="INVALID_RECEIVING_NODE_ACCOUNT">
  In Query validation, an account with +ve(amount) value should be a Receiving node account, the receiver account should be only one account in the list.
</Accordion>

<Accordion title="MISSING_QUERY_HEADER">
  The header is missing in the Query request.
</Accordion>

<Accordion title="ACCOUNT_UPDATE_FAILED">
  The update of the account failed.
</Accordion>

<Accordion title="INVALID_KEY_ENCODING">
  Provided key encoding was not supported by the system.
</Accordion>

<Accordion title="NULL_SOLIDITY_ADDRESS">
  null solidity address
</Accordion>

<Accordion title="CONTRACT_UPDATE_FAILED">
  update of the contract failed
</Accordion>

<Accordion title="INVALID_QUERY_HEADER">
  the query header is invalid
</Accordion>

<Accordion title="INVALID_FEE_SUBMITTED">
  Invalid fee submitted
</Accordion>

<Accordion title="INVALID_PAYER_SIGNATURE">
  Payer signature is invalid
</Accordion>

<Accordion title="KEY_NOT_PROVIDED">
  The keys were not provided in the request.
</Accordion>

<Accordion title="INVALID_EXPIRATION_TIME">
  Expiration time provided in the transaction was invalid.
</Accordion>

<Accordion title="NO_WACL_KEY">
  WriteAccess Control Keys are not provided for the file
</Accordion>

<Accordion title="FILE_CONTENT_EMPTY">
  The contents of file are provided as empty.
</Accordion>

<Accordion title="INVALID_ACCOUNT_AMOUNTS">
  The crypto transfer credit and debit do not sum equal to 0
</Accordion>

<Accordion title="EMPTY_TRANSACTION_BODY">
  Transaction body provided is empty
</Accordion>